11197237490 has 8 divisors (see below), whose sum is σ = 20155027500. Its totient is φ = 4478894992.

The previous prime is 11197237487. The next prime is 11197237501. The reversal of 11197237490 is 9473279111.

It is a Cunningham number, because it is equal to 105817²+1.

It can be written as a sum of positive squares in 2 ways, for example, as 11197237489 + 1 = 105817^2 + 1^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 559861865 + ... + 559861884.

Almost surely, 2^11197237490 is an apocalyptic number.

11197237490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11197237490 is a deficient number, since it is larger than the sum of its proper divisors (8957790010).

11197237490 is a wasteful number, since it uses less digits than its factorization.

11197237490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1119723756.

The product of its (nonzero) digits is 95256, while the sum is 44.

The spelling of 11197237490 in words is "eleven billion, one hundred ninety-seven million, two hundred thirty-seven thousand, four hundred ninety".